package Delikostidis.MapRotationAndZoomControls;

import Delikostidis.MapRotationAndZoomControls.R;
import com.google.android.maps.MapActivity;
import com.google.android.maps.MapView;
import com.google.android.maps.MyLocationOverlay;
import com.google.android.maps.MapView.LayoutParams;
import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.Canvas;
import android.graphics.DrawFilter;
import android.graphics.Matrix;
import android.graphics.Paint;
import android.graphics.Path;
import android.graphics.Picture;
import android.graphics.PorterDuff;
import android.graphics.Rect;
import android.graphics.RectF;
import android.graphics.Region;
import android.hardware.SensorListener;
import android.hardware.SensorManager;
import android.hardware.SensorEvent;
import android.hardware.SensorEventListener;
import android.hardware.Sensor;
import android.os.Bundle;
import android.view.MotionEvent;
import android.view.View;
import android.view.ViewGroup;
import android.widget.LinearLayout;
import javax.microedition.khronos.opengles.GL;


public class MapRotationAndZoomControls extends MapActivity {
	
    private SensorManager mSensorManager;
    private RotateView mRotateView;
    private MapView mMapView;
    private MyLocationOverlay mMyLocationOverlay;


    private class RotateView extends ViewGroup implements 

SensorEventListener {
        private static final float SQ2 = 1.414213562373095f;
        private final SmoothCanvas mCanvas = new SmoothCanvas();
        private float mHeading = 0;

        public RotateView(Context context) {
            super(context);
        }

        public void onSensorChanged(SensorEvent event) {
            synchronized (this) {
                mHeading = event.values[0];
                invalidate();
            }
        }







        @Override
        protected void dispatchDraw(Canvas canvas) {
            canvas.save(Canvas.MATRIX_SAVE_FLAG);
            canvas.rotate(-mHeading, getWidth() * 0.5f, 

getHeight() * 0.5f);
            mCanvas.delegate = canvas;
            super.dispatchDraw(mCanvas);
            canvas.restore();
        }

        @Override
        protected void onLayout(boolean changed, int l, int t, 

int r, int b) {
            final int width = getWidth();
            final int height = getHeight();
            final int count = getChildCount();
            for (int i = 0; i < count; i++) {
                final View view = getChildAt(i);
                final int childWidth = 

view.getMeasuredWidth();
                final int childHeight = 

view.getMeasuredHeight();
                final int childLeft = (width - childWidth) / 

2;
                final int childTop = (height - childHeight) / 

2;
                view.layout(childLeft, childTop, childLeft + 

childWidth, childTop + childHeight);
            }
        }

        @Override
        protected void onMeasure(int widthMeasureSpec, int 

heightMeasureSpec) {
            int w = getDefaultSize(getSuggestedMinimumWidth(), 

widthMeasureSpec);
            int h = 

getDefaultSize(getSuggestedMinimumHeight(), 

heightMeasureSpec);
            int sizeSpec;
            if (w > h) {
                sizeSpec = MeasureSpec.makeMeasureSpec((int) 

(w * SQ2), MeasureSpec.EXACTLY);
            } else {
                sizeSpec = MeasureSpec.makeMeasureSpec((int) 

(h * SQ2), MeasureSpec.EXACTLY);
            }
            final int count = getChildCount();
            for (int i = 0; i < count; i++) {
                getChildAt(i).measure(sizeSpec, sizeSpec);
            }
            super.onMeasure(widthMeasureSpec, 

heightMeasureSpec);
        }

        @Override
        public boolean dispatchTouchEvent(MotionEvent ev) {
            Matrix m = new Matrix();
            
            m.setRotate(mHeading,  getWidth() * 0.5f, 

getHeight() * 0.5f);
            float[] pts = new float[2];
            pts[0] = ev.getX();
            pts[1] = ev.getY();
            m.mapPoints(pts);
            ev.setLocation(pts[0],pts[1]);
            mMapView.dispatchTouchEvent(ev);
            return true;
        }

        public void onAccuracyChanged(Sensor sensor, int 

accuracy) {
            // TODO Auto-generated method stub
           
        }
    }

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        mSensorManager = (SensorManager) 

getSystemService(SENSOR_SERVICE);
        mRotateView = new RotateView(this);
        //release key!!!
        mMapView = new MapView(this, 

"0o0Yz3kGYjmbFiHdOCEtljp0dcPnLo0KzdjDZ8g");
       
        mRotateView.addView(mMapView);
        //setContentView(mRotateView);
        setContentView(R.layout.main);
        LinearLayout layout = (LinearLayout) 

findViewById(R.id.mapView); 
        layout.addView(mRotateView);
        mRotateView.requestFocus();
       
       
        mMyLocationOverlay = new MyLocationOverlay(this, 

mMapView);
        mMyLocationOverlay.runOnFirstFix(new Runnable() { 

public void run() {
            

mMapView.getController().animateTo(mMyLocationOverlay.getMyLocation());
        }});
        mMapView.getOverlays().add(mMyLocationOverlay);
        mMapView.getController().setZoom(18);
       // mMapView.setBuiltInZoomControls(true);
        mMapView.setClickable(true);
        mMapView.setEnabled(true);
       


    }

    @Override
    protected void onResume() {
        super.onResume();
        

if(mSensorManager.getSensorList(Sensor.TYPE_ORIENTATION).size(

)>0)
            

mSensorManager.registerListener(mRotateView,mSensorManager.getSensorList(Sensor.TYPE_ORIENTATION).get(0),SensorManager.SENSOR_DELAY_UI);

        mMyLocationOverlay.enableMyLocation();
    }

    @Override
    protected void onStop() {
        mSensorManager.unregisterListener(mRotateView);
        mMyLocationOverlay.disableMyLocation();
        super.onStop();
    }
   
    @Override
    protected void onPause(){
        mSensorManager.unregisterListener(mRotateView);
        super.onResume();
    }

    @Override
    protected boolean isRouteDisplayed() {
        return false;
    }


    static final class SmoothCanvas extends Canvas {
        Canvas delegate;

        private final Paint mSmooth = new 

Paint(Paint.FILTER_BITMAP_FLAG);

        public void setBitmap(Bitmap bitmap) {
            delegate.setBitmap(bitmap);
        }

        public void setViewport(int width, int height) {
            delegate.setViewport(width, height);
        }

        public boolean isOpaque() {
            return delegate.isOpaque();
        }

        public int getWidth() {
            return delegate.getWidth();
        }

        public int getHeight() {
            return delegate.getHeight();
        }

        public int save() {
            return delegate.save();
        }

        public int save(int saveFlags) {
            return delegate.save(saveFlags);
        }

        public int saveLayer(RectF bounds, Paint paint, int 

saveFlags) {
            return delegate.saveLayer(bounds, paint, 

saveFlags);
        }

        public int saveLayer(float left, float top, float 

right, float
                bottom, Paint paint,
                int saveFlags) {
            return delegate.saveLayer(left, top, right, 

bottom, paint,
                    saveFlags);
        }

        public int saveLayerAlpha(RectF bounds, int alpha, int 

saveFlags) {
            return delegate.saveLayerAlpha(bounds, alpha, 

saveFlags);
        }

        public int saveLayerAlpha(float left, float top, float 

right,
                float bottom, int alpha,
                int saveFlags) {
            return delegate.saveLayerAlpha(left, top, right, 

bottom,
                    alpha, saveFlags);
        }

        public void restore() {
            delegate.restore();
        }

        public int getSaveCount() {
            return delegate.getSaveCount();
        }

        public void restoreToCount(int saveCount) {
            delegate.restoreToCount(saveCount);
        }

        public void translate(float dx, float dy) {
            delegate.translate(dx, dy);
        }

        public void scale(float sx, float sy) {
            delegate.scale(sx, sy);
        }

        public void rotate(float degrees) {
            delegate.rotate(degrees);
        }

        public void skew(float sx, float sy) {
            delegate.skew(sx, sy);
        }

        public void concat(Matrix matrix) {
            delegate.concat(matrix);
        }

        public void setMatrix(Matrix matrix) {
            delegate.setMatrix(matrix);
        }

        public void getMatrix(Matrix ctm) {
            delegate.getMatrix(ctm);
        }

        public boolean clipRect(RectF rect, Region.Op op) {
            return delegate.clipRect(rect, op);
        }

        public boolean clipRect(Rect rect, Region.Op op) {
            return delegate.clipRect(rect, op);
        }

        public boolean clipRect(RectF rect) {
            return delegate.clipRect(rect);
        }

        public boolean clipRect(Rect rect) {
            return delegate.clipRect(rect);
        }

        public boolean clipRect(float left, float top, float 

right,
                float bottom, Region.Op op) {
            return delegate.clipRect(left, top, right, bottom, 

op);
        }

        public boolean clipRect(float left, float top, float 

right,
                float bottom) {
            return delegate.clipRect(left, top, right, 

bottom);
        }

        public boolean clipRect(int left, int top, int right, 

int bottom) {
            return delegate.clipRect(left, top, right, 

bottom);
        }

        public boolean clipPath(Path path, Region.Op op) {
            return delegate.clipPath(path, op);
        }

        public boolean clipPath(Path path) {
            return delegate.clipPath(path);
        }

        public boolean clipRegion(Region region, Region.Op op) 

{
            return delegate.clipRegion(region, op);
        }

        public boolean clipRegion(Region region) {
            return delegate.clipRegion(region);
        }

        public DrawFilter getDrawFilter() {
            return delegate.getDrawFilter();
        }

        public void setDrawFilter(DrawFilter filter) {
            delegate.setDrawFilter(filter);
        }

        public GL getGL() {
            return delegate.getGL();
        }

        public boolean quickReject(RectF rect, EdgeType type) 

{
            return delegate.quickReject(rect, type);
        }

        public boolean quickReject(Path path, EdgeType type) {
            return delegate.quickReject(path, type);
        }

        public boolean quickReject(float left, float top, 

float right,
                float bottom,
                EdgeType type) {
            return delegate.quickReject(left, top, right, 

bottom, type);
        }

        public boolean getClipBounds(Rect bounds) {
            return delegate.getClipBounds(bounds);
        }

        public void drawRGB(int r, int g, int b) {
            delegate.drawRGB(r, g, b);
        }

        public void drawARGB(int a, int r, int g, int b) {
            delegate.drawARGB(a, r, g, b);
        }

        public void drawColor(int color) {
            delegate.drawColor(color);
        }

        public void drawColor(int color, PorterDuff.Mode mode) 

{
            delegate.drawColor(color, mode);
        }

        public void drawPaint(Paint paint) {
            delegate.drawPaint(paint);
        }

        public void drawPoints(float[] pts, int offset, int 

count,
                Paint paint) {
            delegate.drawPoints(pts, offset, count, paint);
        }

        public void drawPoints(float[] pts, Paint paint) {
            delegate.drawPoints(pts, paint);
        }

        public void drawPoint(float x, float y, Paint paint) {
            delegate.drawPoint(x, y, paint);
        }

        public void drawLine(float startX, float startY, float 

stopX,
                float stopY, Paint paint) {
            delegate.drawLine(startX, startY, stopX, stopY, 

paint);
        }

        public void drawLines(float[] pts, int offset, int 

count, Paint paint) {
            delegate.drawLines(pts, offset, count, paint);
        }

        public void drawLines(float[] pts, Paint paint) {
            delegate.drawLines(pts, paint);
        }

        public void drawRect(RectF rect, Paint paint) {
            delegate.drawRect(rect, paint);
        }

        public void drawRect(Rect r, Paint paint) {
            delegate.drawRect(r, paint);
        }

        public void drawRect(float left, float top, float 

right, float
                bottom, Paint paint) {
            delegate.drawRect(left, top, right, bottom, 

paint);
        }

        public void drawOval(RectF oval, Paint paint) {
            delegate.drawOval(oval, paint);
        }

        public void drawCircle(float cx, float cy, float 

radius, Paint paint) {
            delegate.drawCircle(cx, cy, radius, paint);
        }

        public void drawArc(RectF oval, float startAngle, 

float
                sweepAngle, boolean useCenter,
                Paint paint) {
            delegate.drawArc(oval, startAngle, sweepAngle, 

useCenter, paint);
        }

        public void drawRoundRect(RectF rect, float rx, float 

ry, Paint paint) {
            delegate.drawRoundRect(rect, rx, ry, paint);
        }

        public void drawPath(Path path, Paint paint) {
            delegate.drawPath(path, paint);
        }

        public void drawBitmap(Bitmap bitmap, float left, 

float top,
                Paint paint) {
            if (paint == null) {
                paint = mSmooth;
            } else {
                paint.setFilterBitmap(true);
            }
            delegate.drawBitmap(bitmap, left, top, paint);
        }

        public void drawBitmap(Bitmap bitmap, Rect src, RectF 

dst,
                Paint paint) {
            if (paint == null) {
                paint = mSmooth;
            } else {
                paint.setFilterBitmap(true);
            }
            delegate.drawBitmap(bitmap, src, dst, paint);
        }

        public void drawBitmap(Bitmap bitmap, Rect src, Rect 

dst, Paint paint) {
            if (paint == null) {
                paint = mSmooth;
            } else {
                paint.setFilterBitmap(true);
            }
            delegate.drawBitmap(bitmap, src, dst, paint);
        }

        public void drawBitmap(int[] colors, int offset, int 

stride,
                int x, int y, int width,
                int height, boolean hasAlpha, Paint paint) {
            if (paint == null) {
                paint = mSmooth;
            } else {
                paint.setFilterBitmap(true);
            }
            delegate.drawBitmap(colors, offset, stride, x, y, 

width,
                    height, hasAlpha, paint);
        }

        public void drawBitmap(Bitmap bitmap, Matrix matrix, 

Paint paint) {
            if (paint == null) {
                paint = mSmooth;
            } else {
                paint.setFilterBitmap(true);
            }
            delegate.drawBitmap(bitmap, matrix, paint);
        }

        public void drawBitmapMesh(Bitmap bitmap, int 

meshWidth, int
                meshHeight, float[] verts,
                int vertOffset, int[] colors, int colorOffset, 

Paint paint) {
            delegate.drawBitmapMesh(bitmap, meshWidth, 

meshHeight,
                    verts, vertOffset, colors,
                    colorOffset, paint);
        }

        public void drawVertices(VertexMode mode, int 

vertexCount,
                float[] verts, int vertOffset,
                float[] texs, int texOffset, int[] colors, int
                colorOffset, short[] indices,
                int indexOffset, int indexCount, Paint paint) 

{
            delegate.drawVertices(mode, vertexCount, verts,
                    vertOffset, texs, texOffset, colors,
                    colorOffset, indices, indexOffset, 

indexCount, paint);
        }

        public void drawText(char[] text, int index, int 

count, float
                x, float y, Paint paint) {
            delegate.drawText(text, index, count, x, y, 

paint);
        }

        public void drawText(String text, float x, float y, 

Paint paint) {
            delegate.drawText(text, x, y, paint);
        }

        public void drawText(String text, int start, int end, 

float x,
                float y, Paint paint) {
            delegate.drawText(text, start, end, x, y, paint);
        }

        public void drawText(CharSequence text, int start, int 

end,
                float x, float y, Paint paint) {
            delegate.drawText(text, start, end, x, y, paint);
        }

        public void drawPosText(char[] text, int index, int 

count,
                float[] pos, Paint paint) {
            delegate.drawPosText(text, index, count, pos, 

paint);
        }

        public void drawPosText(String text, float[] pos, 

Paint paint) {
            delegate.drawPosText(text, pos, paint);
        }

        public void drawTextOnPath(char[] text, int index, int 

count,
                Path path, float hOffset,
                float vOffset, Paint paint) {
            delegate.drawTextOnPath(text, index, count, path, 

hOffset,
                    vOffset, paint);
        }

        public void drawTextOnPath(String text, Path path, 

float
                hOffset, float vOffset,
                Paint paint) {
            delegate.drawTextOnPath(text, path, hOffset, 

vOffset, paint);
        }

        public void drawPicture(Picture picture) {
            delegate.drawPicture(picture);
        }

        public void drawPicture(Picture picture, RectF dst) {
            delegate.drawPicture(picture, dst);
        }

        public void drawPicture(Picture picture, Rect dst) {
            delegate.drawPicture(picture, dst);
        }
    }
}


